"The Sound of Silence" QuietRock VS. Mass Loaded Vinyl

"Our tests revealed that viscoelastic paneling is an equal if not better solution than. mass loading to soundproofing".

Download this MS Word Document, it is a study by Pratt School of Engineering at Duke University. It looks at different contruction techniques for soundproofing. It compares the use of mass to block sound versus using of viscoelastic damping material like that found in QuietRock

This is and interesting read and viscoelastic material proves to be slightly better than mass. If your interested in learning more about viscoelastic damping check out this link on Audio Alloy. They have a great product called Green Glue.

You can download this study here Index of /Acoustics Select "The Sound of Silence" from the index.